 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
 <html>  
     <head>  
         <title>optgroup</title>  
         <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">  
         <meta http-equiv="description" content="this is my page">  
         <meta http-equiv="content-type" content="text/html; charset=UTF-8">  
     </head>  
     <body>  
         <select>  
             <optgroup label="Java">  
                 <option value="jsp Servlet">jsp Servlet</option>  
                <option value="javaEE">javaEE</option>  
             </optgroup>  
             <optgroup label=".Net">  
                <option value="aspx">aspx</option>  
                 <option value="C#">C#</option>  
             </optgroup>  
         </select>  
         
     <fieldset>
      <legend>dddd</legend>
    </fieldset>
     </body>  
 </html>  